CN103965802A - Biochemical process preparation technology of high-viscosity starch adhesive - Google Patents
Biochemical process preparation technology of high-viscosity starch adhesive Download PDFInfo
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- CN103965802A CN103965802A CN201410203691.5A CN201410203691A CN103965802A CN 103965802 A CN103965802 A CN 103965802A CN 201410203691 A CN201410203691 A CN 201410203691A CN 103965802 A CN103965802 A CN 103965802A
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- sizing agent
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Abstract
The invention relates to a biochemical process preparation technology of high-viscosity starch adhesive. The biochemical process preparation technology comprises the following steps: (1) selecting glutinous rice starch, corn starch, wheat starch and potato starch as raw materials, detecting the amylose content in each raw material, proportionally mixing, adding deionized water and stirring; (2) adding a starch branching enzyme according to the proportions of different types of starch and characteristics of the raw materials so that starch molecules are polymerized further; at the end of polymerization reaction, centrifuging and discarding supernatant; (3) uniformly mixing acetic acid, sodium hydroxide, a middle medium and deionized water, then adding centrifuged starch milk, uniformly mixing again, and carrying out chemical reaction; and (4) at the end of reaction, centrifuging, drying, adding borax, and packaging to obtain the finished product. The biochemical process preparation technology can be used for preparing the high-viscosity starch adhesive by combination of biological and chemical methods. The high-viscosity starch adhesive can be widely used as auxiliary adhesives in industries of wallpaper, lumber and the like. An approach is provided for further processing of starch.
Description
Technical field
The invention belongs to food deep processing and sizing agent field, be specifically related to a kind of biochemical process and prepare high viscosity starch glue technology.
Background technology
Sizing agent claims again tackiness agent, tackiness agent.Be a kind of can be similar or inhomogeneous material bonding or the material bonding together, the advantage such as the popular glue (water) that is referred to as, compares with other mode of connection, and that sizing agent has is lightweight, bonding strength is high, stress distribution is even.Sizing agent every field in industry, traffic, medical treatment, agricultural, national defence and daily life all has application, not only for productive life provides important instrument and means, also promoted the progress of association area science and technology, fully demonstrated it and obtained importance in modern science and technology with in producing simultaneously.Therefore the research of the preparation of relevant sizing agent theory, technology of preparing and utilisation technology also enjoys people's concern.
The development of China's sizing agent technology is started in late 1950s, enters after the nineties, has had the development of advancing by leaps and bounds.In sizing agent structure of output, maximum with " three-aldehyde glue " (urea aldehyde, phenolic aldehyde and melamine-formaldehyde resin adhesive) output, consumption industry comprises packaging industry (35%), wood working (25%), building trade (20%), motor transport service (10%), other industry (10%).The advantages such as " three-aldehyde glue " has cold-hot water excellent property, bonding strength is better, set time is short, the shortcoming that " but three-aldehyde glue " is the most fatal is in use can give out irritating formaldehyde gas, long-term suction can be caused the complications such as eyes stung, throat inflammation, respiratory tract be impaired, serious even can cause malignant tumour, and serious harm is to human health and ecotope.According to the content of sizing agent Free-formaldehyde, sizing agent kind can be divided into E1, E2, E3 level.Formaldehyde content at developed country's main product has reached E1 grade standard at present.China also executes standard GB/T 18580-2001 on July 1st, 2002, the burst size of methanal of regulation wood-based plate must reach E2 level or E2 level above (E2 level <30mg/100g, E1 level <9mg/100g bore a hole extraction process).If free formaldehyde content, higher than 0.1mg/kg, bans use of in some occasion.The even nontoxic serial based Wood Adhesives of low toxicity becomes the focus of various countries researchist research and the focus that numerous people is paid close attention to already.
In addition, the free formaldehyde in " three-aldehyde glue " causes strongly to eyes and skin and irritate, and respiratory mucosa is produced and adverse influence.Some urea-formaldehyde resin adhesives are because production technique is different, and free formaldehyde content is very high, is the primary pollution source of room air pollution, are also the inducements of " finishing is sick ".A lot of countries have formulated the laws and regulations of restriction formic acid concn one after another in the world, and the U.S. and European Union have also been decided to be formaldehyde one of thing that may be carcinogenic, with this, limit the burst size of methanal in enterprise's production.Comparatively speaking, biomass sizing agent because raw material sources in animals and plants and more extensive, and its recyclability is strong, burst size of methanal is low, thereby has won gradually people's concern.The raw material of biomass sizing agent is in the majority with plant, and animal material only accounts for a small part.Wherein starch based Jiao Dot agent, with its plurality of advantages and abundant source, becomes the kind being most widely used.
Starch is a kind of natural high moleculer eompound that plant is synthesized by photosynthesis, is the major storage form of carbohydrate in plant, and major storage is in seed, stem tuber, fruit, root and leaf.Starch is a kind of pure natural and renewable high molecular polymer, can mechanize, mass-producing, suitability for industrialized production and purification.Therefore we are necessary to utilize new technology to carry out deep processing to starch, and prepare on this basis non-harmful, full-bodied biological sizing agent, reach the object of giving full play to starch economic worth, realize the increment of product.
Summary of the invention
The object of this invention is to provide a kind of biochemical process and prepare high viscosity starch sizing agent technology, the product viscosity of gained is high, nuisanceless, and cost is low has the stronger market competitiveness.For achieving the above object, the present invention is by the following technical solutions:
Biochemical process is prepared a glutinous rice glue technology, comprises the following steps: (1) selects glutinous rice starch X
1gram, W-Gum X
2gram, wheat starch X
3gram, yam starch X
4gram be raw material, and detect the amylose content in each raw material, represent respectively with a%, b%, c%, d%, certain ratio is mixed and is added deionized water and stir.(2) according to the proportioning of Starches, add suitable Q-enzyme, by the effect of Q-enzyme, realize the further polymerization of starch molecule, after polyreaction finishes, carry out centrifugal, supernatant discarded.(3) get acetic acid, sodium hydroxide, intermediate medium, deionized water mix and blend, mix the starch milk of rear interpolation after centrifugal, after mixing, under certain temperature condition, carry out chemical reaction.(4) reaction finish rear centrifugal, be dried and add borax after be packaged to be finished product.
In described step (1), the proportion scale of glutinous rice starch, W-Gum, wheat starch, yam starch is arbitrary proportion, and records proportioning data.The mass ratio of deionized water and starch is 1: 0.5～1.
Q-enzyme addition in described step (2) adds according to the proportioning of various starch, and its addition is specially: (10～20) * (X
1* a%+X
2* b%+X
3* c%+X
4* d%) U; The operative temperature of Q-enzyme is 40～55 ℃, and be 3-6 hour action time; Centrifugal to water content be 40%～60%.
In described step (3), the blending ratio of acetic acid, sodium hydroxide, intermediate medium, deionized water is 1: 1～1.5: 3～5: 0.5～1.5; Acetic acid is a kind of in Monochloro Acetic Acid or trichoroacetic acid(TCA); Intermediate medium is a kind of in ethanol, chloroform, methyl alcohol, acetone; With sodium hydroxide and total starch dry sample quality, in 1:2～4 ratio, it is mixed with upper step gained starch milk; Temperature of reaction rises to 35 ℃ by 25 ℃, and heat-up rate is 5～8 ℃/h, keeps 50～90 minutes after being warming up to 35 ℃.
In described step (4) centrifugal to moisture content of material be 40%～60%, drying temperature is lower than 60 ℃, being dried to water content is 10%-18%, adding borax amount is 1.5-3.5%.
It is raw material that pure natural and renewable high molecular polymer starch is take in the present invention, utilizes biochemical process to prepare high viscosity starch sizing agent technology, can mechanize, mass-producing, suitability for industrialized production and purification.This invention is carried out deep processing to starch, and prepares on this basis non-harmful, full-bodied biological sizing agent, can be widely used in the industry auxiliary material tackiness agents such as wallpaper, timber, for giving full play to starch economic worth, provides approach.
Specific examples
The present invention is described further following following example, yet it should be noted that these examples are only illustration the present invention, but not in order to limit the scope of the invention.
Example one
Biochemical process is prepared a high viscosity starch sizing agent technology, composition of raw materials: 540 kilograms of deionizations, glutinous rice starch 80 kilograms of (amylose content 2%), W-Gum 60 kilograms of (amylose content 27%), wheat starch 70 kilograms of (amylose content 25%), the total enzymes of Q-enzyme live 3.53 * 10
5u, 55 kilograms of trichoroacetic acid(TCA)s, 60 kilograms, sodium hydroxide, ethanol 150mL, borax amount are 7 kilograms.Preparation process is as follows:
In reactor, add 450 kilograms of deionized waters, start agitator, add successively four kinds of starch; After being uniformly dispersed, add Q-enzyme, be warming up to 53 ℃, act on 6 hours, finish rear centrifugal to water content be 60%, abandon supernatant; Then after trichoroacetic acid(TCA), sodium hydroxide, ethanol and 90 kilograms of deionized waters being mixed, add step gained starch milk to mix, temperature of reaction rises to 35 ℃ by 25 ℃, and heat-up rate is 6 ℃/h, keeps 70 minutes after being warming up to 35 ℃; Reaction finishes centrifugally to moisture content of material, to be 50%, 55 ℃ to be dried to water content be 17% afterwards, and add borax to mix, high viscosity starch sizing agent is packed and obtained in discharging.
The product that the present embodiment obtains, possesses more than following characteristic (1) colloid production viscosity reaches 146000cps after testing; (2) low-temperature stability, is placed in product-20 ℃ of environment, cryogenic freezing 8 hours, and after taking-up, room temperature is melted naturally, and colloid outward appearance and adhesive property do not change; (3) product application, product is watered 100%, normally uses, and being watered rear viscosity is 4500cps.
Example two
Biochemical process is prepared a high viscosity starch sizing agent technology, composition of raw materials: 450 kilograms of deionized waters, glutinous rice starch 30 kilograms of (amylose content 2%), W-Gum 70 kilograms of (amylose content 28%), wheat starch 60 kilograms of (amylose content 31%), yam starch 40 kilograms of (amylose content 14%), Q-enzymes 6.23 * 10
5u, 50 kilograms of Monochloro Acetic Acids, 50 kilograms, sodium hydroxide, acetone 150mL, borax amount are 6 kilograms.Preparation process is as follows:
In reactor, add 400 kilograms of deionized waters, start agitator, add successively four kinds of starch; After being uniformly dispersed, add Q-enzyme, be warming up to 50 ℃, act on 5 hours, finish rear centrifugal to water content be 55%, abandon supernatant; Then after Monochloro Acetic Acid, sodium hydroxide, acetone and 50 kilograms of deionized waters being mixed, add step gained starch milk to mix, temperature of reaction rises to 35 ℃ by 25 ℃, and heat-up rate is 5 ℃/h, keeps 55 minutes after being warming up to 35 ℃; Reaction finishes centrifugally to moisture content of material, to be 60%, 55 ℃ to be dried to water content be 15% afterwards, and add borax to mix, high viscosity starch sizing agent is packed and obtained in discharging.
The product that the present embodiment obtains, possesses more than following characteristic (1) colloid production viscosity reaches 140000cps after testing; (2) low-temperature stability, is placed in product-20 ℃ of environment, cryogenic freezing 8 hours, and after taking-up, room temperature is melted naturally, and colloid outward appearance and adhesive property do not change; (3) product application, product is watered 100%, normally uses, and being watered rear viscosity is 41000cps.
Claims (5)
1. biochemical process is prepared a high viscosity starch sizing agent technology, comprises the following steps: (1) selects glutinous rice starch X
1gram, W-Gum X
2gram, wheat starch X
3gram, yam starch X
4gram be raw material, and detect the amylose content in each raw material, represent respectively with a%, b%, c%, d%, certain ratio is mixed and is added deionized water and stir; (2) according to the proportioning of Starches, add suitable Q-enzyme, by the effect of Q-enzyme, realize the further polymerization of starch molecule, after polyreaction finishes, carry out centrifugal, supernatant discarded; (3) get acetic acid, sodium hydroxide, intermediate medium, deionized water mix and blend, mix the starch milk of rear interpolation after centrifugal, after mixing, under certain temperature condition, carry out chemical reaction; (4) reaction finish rear centrifugal, be dried and add borax after be packaged to be finished product.
2. biochemical process as claimed in claim 1 is prepared high viscosity starch sizing agent technology, it is characterized in that: in described step (1), the proportion scale of glutinous rice starch, W-Gum, wheat starch, yam starch is arbitrary proportion, and records proportioning data; The mass ratio of deionized water and starch is 1: 0.5～1.
3. biochemical process as claimed in claim 1 is prepared high viscosity starch sizing agent technology, it is characterized in that: the Q-enzyme addition in described step (2) adds according to the proportioning of various starch, and its addition is specially: (3～20) * (X
1* a%+ X
2* b%+ X
3* c%+ X
4* d%) U; The operative temperature of Q-enzyme is 40～55 ℃, and be 3-6 hour action time; Centrifugal to water content be 40%～60%.
4. biochemical process as claimed in claim 1 is prepared high viscosity starch sizing agent technology, it is characterized in that: in described step (3), the blending ratio of acetic acid, sodium hydroxide, intermediate medium, deionized water is 1: 1～1.5: 3～5: 0.5～1.5; Acetic acid is a kind of in Monochloro Acetic Acid or trichoroacetic acid(TCA); Intermediate medium is a kind of in ethanol, chloroform, methyl alcohol, acetone; With sodium hydroxide and total starch dry sample quality, in 1:2～4 ratio, it is mixed with upper step gained starch milk; Temperature of reaction rises to 35 ℃ by 25 ℃, and heat-up rate is 5～8 ℃/h, keeps 50～90 minutes after being warming up to 35 ℃.
5. biochemical process as claimed in claim 1 is prepared high viscosity starch sizing agent technology, it is characterized in that: in described step (4) centrifugal to moisture content of material be 40%～60%, drying temperature is lower than 60 ℃, and being dried to water content is 10%-18%, and adding borax amount is 1.5-3.5%.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199005A (en) * | 2015-11-11 | 2015-12-30 | 江南大学 | Preparation method of high-performance starch slurry |
| CN105466746A (en) * | 2016-01-21 | 2016-04-06 | 河南科技大学 | Paraffin section adhibiting agent formula and preparation method thereof |
| CN108130011A (en) * | 2017-12-25 | 2018-06-08 | 洛阳名力科技开发有限公司 | A kind of bioadhesive and preparation method thereof |
| CN108130008A (en) * | 2017-12-07 | 2018-06-08 | 明光市永德包装有限公司 | A kind of preparation method of high stability starch adhesive |
| CN108378604A (en) * | 2018-04-29 | 2018-08-10 | 上海前引科技有限公司 | A kind of environmental and ecological anion solid wood granule furniture-plates |
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| CN1421463A (en) * | 2001-11-29 | 2003-06-04 | 罗凯脱兄弟公司 | Continuous process for modifying starch with branching enzyme and derivate thereof |
| CN1654480A (en) * | 2003-12-19 | 2005-08-17 | 罗凯脱兄弟公司 | Soluble highly branched glucose polymers |
| CN101595226A (en) * | 2007-02-01 | 2009-12-02 | Cj第一制糖株式会社 | The enzymatic highly branched amylose starch and the preparation method of amylopectin cluster |
| US20120121873A1 (en) * | 2010-11-15 | 2012-05-17 | Agrana Staerke Gmbh | Starch-based glue composition |
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2014
- 2014-05-14 CN CN201410203691.5A patent/CN103965802A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421463A (en) * | 2001-11-29 | 2003-06-04 | 罗凯脱兄弟公司 | Continuous process for modifying starch with branching enzyme and derivate thereof |
| CN1654480A (en) * | 2003-12-19 | 2005-08-17 | 罗凯脱兄弟公司 | Soluble highly branched glucose polymers |
| CN101595226A (en) * | 2007-02-01 | 2009-12-02 | Cj第一制糖株式会社 | The enzymatic highly branched amylose starch and the preparation method of amylopectin cluster |
| US20120121873A1 (en) * | 2010-11-15 | 2012-05-17 | Agrana Staerke Gmbh | Starch-based glue composition |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199005A (en) * | 2015-11-11 | 2015-12-30 | 江南大学 | Preparation method of high-performance starch slurry |
| CN105199005B (en) * | 2015-11-11 | 2018-01-16 | 江南大学 | A kind of method for preparing high-performance starch slurry |
| CN105466746A (en) * | 2016-01-21 | 2016-04-06 | 河南科技大学 | Paraffin section adhibiting agent formula and preparation method thereof |
| CN105466746B (en) * | 2016-01-21 | 2018-05-29 | 河南科技大学 | A kind of paraffin wax flaking bonding die agent prescription and preparation method thereof |
| CN108130008A (en) * | 2017-12-07 | 2018-06-08 | 明光市永德包装有限公司 | A kind of preparation method of high stability starch adhesive |
| CN108130011A (en) * | 2017-12-25 | 2018-06-08 | 洛阳名力科技开发有限公司 | A kind of bioadhesive and preparation method thereof |
| CN108378604A (en) * | 2018-04-29 | 2018-08-10 | 上海前引科技有限公司 | A kind of environmental and ecological anion solid wood granule furniture-plates |
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Application publication date: 20140806 |